Well, it happened again. I played my Chaffee, which I haven't touched much in months, drove it in a battle with lag so bad I couldn't aim on tanks and my tank moved in jerks, killed one Panzer and spotted 8 tanks. I was killed by enemy arty and finished sixth on my XP team roster. Disgusted with the battle, I went back to my garage and found a star on the gun barrel. What?
I know a single MoE is not terribly difficult to get, but mine have been rewarded at the strangest times. The same kind of sequence happened with my KV-1, T67, M4, and 59-16. There are many players much better than I am in all of those tanks, and my results them tanks were inconsistent and unspectacular. The biggest mystery was the M4. I had a miserable record in that tank until one battle where I performed very well (Ace Mastery, 7 kills, etc.). Bing! There was the star. The situation with the 59-16 was similar, though I had more than one good battle.
While I can understand MoEs for tanks where I have often had good performances (T-34-85, Rudy, MT-25, T-150, Jumbo, Easy 8, Type T-34, and especially the two on my T-34), at other times, the stars seem to appear randomly.